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Thread: North American only: Chinese "wall wart" plugs

  1. #1
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    Default North American only: Chinese "wall wart" plugs

    Okay, so most of our consumer electronics are manufactured in the Far East. I can deal with that.

    But lately, the "cockroach in the spaghetti" has been the AC plugs on USB wall warts. The blades of same are most often solid pieces of metal (brass?) plated with nickel. Contrast this with a "normal" ungrounded AC plug whose blades are usually formed from a doubled piece of brass with some "spring" to it. Plug it into a wall receptacle and it won't fall out.

    But the wall wart does fall out, particularly if there's any weight from a USB cable on it. I went out of my way to purchase a bunch of these specifically for the UL approval. But a device that doesn't stay firmly plugged into an outlet is hardly safe.

    Does anyone have any suggestions for remedying this? I've tried spreading the blades a bit, but the darned things are just too slippery.

    Perhaps I should deform or roughen up those blades. Anyone have their own solutions?

  2. #2

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    Make a plastic piece with a hole for the center screw of the socket.
    Dwight

  3. #3

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    I replaced all the receptacles where I had this problem.

  4. #4
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    The receptacle is only a couple of years old. I don't want to attach the wart permanently. Maybe I can devise a solution that uses the ground prong as a stabilizer. The problem is that the wart blades are thin, solid and slick.

    Mini- and Micro USB connectors have this problem in spades. They wear badly. I wish we still used the old USB-B connectors.

  5. #5

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    These days a lot of consumer electronics don't even come with an AC power supply anymore. They just have a USB port for charging or power and expect that everyone probably has a few extra USB power adapters lying around from all the smartphones they've owned over the years.

    At least this way you don't have to clog up the landfill by throwing out the crappy, radio-interference-generating, non-UL-Listed power adapter it would've come with, and just buy a good-quality USB power supply to use with it, if you don't have an extra one already.

  6. #6
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    I did mention that the adapter was UL-listed (one of the reasons I selected it); it's a 2-amp USB adapter, so not exactly a mobile phone recharger.

  7. #7

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    With how many do you have this problem? Relocating the receptacle horizontally to the floor with a power strip is a simple solution.

  8. #8

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    I normally plug them into a 3' extension cord and I haven't had that problem. Plus, I can charge two or three devices simultaneously and that includes chargers for camera batteries and tactical flashlight batteries.
    PM me if you're looking for 3" or 5" floppy disks. EMail For everything else, Take Another Step

  9. #9

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    Quote Originally Posted by Chuck(G) View Post
    I did mention that the adapter was UL-listed (one of the reasons I selected it); it's a 2-amp USB adapter, so not exactly a mobile phone recharger.
    Like this mobile phone recharger? It seems to fit your description other than it takes a reasonable amount of force to remove it.

    IMG_20190927_160255316.jpg
    IMG_20190927_160224927.jpg

  10. #10

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    Quote Originally Posted by Stone View Post
    I normally plug them into a 3' extension cord and I haven't had that problem. Plus, I can charge two or three devices simultaneously and that includes chargers for camera batteries and tactical flashlight batteries.
    Your happy local "Code Enforcement Bureau" doesn't read this.

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